Overview

The purpose of damp proof courses is to prevent water rising up a wall from the ground, water moving from one part of a wall to another and to deflect water from an inner wall of a cavity wall construction to the exterior of the building. Damp proof courses may also be used in masonry chimneys and parapet walls to protect the inside of the building from water moving down from above. They should be designed in conjunction with flashings and sheets for waterproofing, including roofing sheets and damp proof sheets, to ensure a continuous barrier and should deflect water to the exterior of a building so that it can drain away safely.

Document: references other documents

Document: referenced in other documents

Responsible national committee

NA 054-04-03 AA - Synthetic sheets  

Responsible european committee

CEN/TC 254/SC 2 - Synthetic sheets